CN106303826A - Method and system based on DAC-circuit output sound system sound intermediate frequency data - Google Patents
Method and system based on DAC-circuit output sound system sound intermediate frequency data Download PDFInfo
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- CN106303826A CN106303826A CN201610694072.XA CN201610694072A CN106303826A CN 106303826 A CN106303826 A CN 106303826A CN 201610694072 A CN201610694072 A CN 201610694072A CN 106303826 A CN106303826 A CN 106303826A
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- dac
- tone type
- type amplifier
- voltage difference
- playing sequence
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
Abstract
The present invention discloses a kind of method and system based on DAC-circuit output sound system sound intermediate frequency data, and its method includes: obtain voltage difference on the single-tone type amplifier being connected on each DAC within a certain period of time based on each DAC port；Based on voltage difference through Digital Signal Processing opening relationships chain；Track selecting device is each single-tone type amplifier labelling playing sequence based on described relation chain；Timing control unit is that each single-tone type amplifier distributes reproduction time based on described relation chain；After central processing unit completes the process of audio-source, export data according to playing sequence and reproduction time to each single-tone type amplifier.The embodiment of the present invention is by obtaining the pressure difference on different port, it is achieved the output of audio frequency output, has ensured scene mode demand.
Description
Technical field
The present invention relates to sound technique field, particularly relate to a kind of based on DAC-circuit output sound system sound intermediate frequency data
Method and system.
Background technology
Sound equipment refer to the language except people, music in addition to other sounds, including the sound, the sound of animal of natural environment
The various sound etc. that sound, the sound equipment of machine tools, the action of people send.Sound equipment probably includes that power amplifier, peripheral equipment (include pressure limit
Device, effect device, equalizer, VCD, DVD etc.), speaker (audio amplifier, loudspeaker) sound console, mike, display device etc. add up
A set of.Wherein, audio amplifier is exactly audio output device, loudspeaker, subwoofer etc..
Along with developing rapidly of electronic technology, the appreciation level of music is constantly being improved by people, in the culture of sound equipment
Contain and also constantly changing and enriching, requirement the most increasingly intellectuality, networking, digitized and the wireless penetration to sound equipment, in order to
Disclosure satisfy that the demand of people, sound equipment circle is proposed Multi-room wireless sound system, thoroughly changes traditional music and appreciates sight
Read, allow the most any room of people, whether parlor, bedroom, study, kitchen or balcony, can time be carved with music together.
From product technology, intellectuality, networking, digitized and wireless penetration are the developing trends that industry is overall, to sound
Ring for industry, Digital Control based on the network architecture, transmission of wireless signals and the intellectuality of system entirety manipulation, will be by
Gradually occupy the main flow of technology application.The hardware device digital to analog converter DAC of existing audio frequency apparatus is responsible for 101010101 numerals
Signal is converted into the sound wave analogue signal that ear can be heard.
Prior art relates to multichannel and accesses the scheme of sound system, its single-tone type being connected to by DAC module
Amplifier carries out audio frequency output, and these single-tone type amplifiers have different scene process in specific implementation process, including
Indoor arrangement, and prior art cannot realize realize playing suitable for multiple single-tone type amplifiers based on voltage difference change
The means of sequence, meet different application demand.
Summary of the invention
The technical problem to be solved in the present invention is, cannot be for multiple single-tone type amplifier bases for existing sound system
Realize the means of playing sequence in voltage difference change, the invention provides a kind of based in DAC-circuit output sound system
The method and system of voice data, by obtaining the pressure difference on different port, it is achieved the output of audio frequency output, has ensured field
Scape mode requirement.
The purpose of the present invention is achieved through the following technical solutions:
Embodiments provide a kind of method based on DAC-circuit output sound system sound intermediate frequency data, including such as
Lower step:
Voltage difference on the single-tone type amplifier being connected on each DAC is obtained within a certain period of time based on each DAC port
Value；
Based on voltage difference through Digital Signal Processing opening relationships chain, described relation chain it is: each single-tone type amplifier
Relation chain with corresponding voltage difference；
Track selecting device is each single-tone type amplifier labelling playing sequence based on described relation chain；
Timing control unit is that each single-tone type amplifier distributes reproduction time based on described relation chain；
After central processing unit completes the process of audio-source, put to each single-tone type according to playing sequence and reproduction time
Big device output data.
Described method also includes:
Described voltage difference is filtered processing by digital signal processor.
The described single-tone type amplifier being connected on each DAC that obtains within a certain period of time based on each DAC port powers on
Pressure difference includes: described each DAC port obtains the first voltage of the single-tone type amplifier being connected on each DAC；
When the time reaches, described each DAC port obtains the second electricity of the single-tone type amplifier being connected on each DAC
Pressure；
A voltage difference is calculated based on described first voltage and the second voltameter.
Described track selecting device is that each single-tone type amplifier labelling playing sequence includes based on described relation chain:
It is each single-tone type amplifier labelling playing sequence based on voltage difference size.
Described is that each single-tone type amplifier labelling playing sequence includes based on voltage difference size:
It is each single-tone type amplifier labelling playing sequence according to voltage difference order from big to small；Or
It is each single-tone type amplifier labelling playing sequence according to voltage difference order from small to large.
Accordingly, the embodiment of the present invention additionally provide a kind of based on DAC-circuit output sound system sound intermediate frequency data be
System, it is characterised in that including:
Multiple DAC module, for obtaining, based on each DAC port, the single-tone being connected on each DAC within a certain period of time
Voltage difference on type amplifier；
Digital signal processor, is used for based on voltage difference through Digital Signal Processing opening relationships chain, described relation chain
For: each single-tone type amplifier and the relation chain of corresponding voltage difference；
Track selecting device, being used for based on described relation chain is each single-tone type amplifier labelling playing sequence；
Timing control unit, being used for based on described relation chain is that each single-tone type amplifier distributes reproduction time；
Processor, after being used for the process of audio-source, according to playing sequence and reproduction time to each single-tone
Type amplifier output data；
The single-tone type amplifier being connected to DAC each in multiple DAC module, is used for exporting voice data.
Described digital signal processor is additionally operable to be filtered described voltage difference processing.
Each DAC port in the plurality of DAC module obtains the first of the single-tone type amplifier being connected on each DAC
Voltage；When the time reaches, described each DAC port obtains the second voltage of the single-tone type amplifier being connected on each DAC；
A voltage difference is calculated based on described first voltage and the second voltameter.
Described track selecting device is each single-tone type amplifier labelling playing sequence based on voltage difference size.
Described track selecting device is that each single-tone type amplifier labelling is play suitable according to voltage difference order from big to small
Sequence；Or it is each single-tone type amplifier labelling playing sequence according to voltage difference order from small to large.
Compared with prior art, the embodiment of the present invention is for the different voltage differences on different single-tone type amplifiers, real
Show audio-frequency play mode, enhanced the different order play mode of this multiple single-tone type amplifier, different field can be suitable for
The application of scape pattern, enhances sound system output audio frequency effect.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the method flow diagrams based on DAC-circuit output sound system sound intermediate frequency data of the embodiment of the present invention；
Fig. 2 is the system construction drawings based on DAC-circuit output sound system sound intermediate frequency data of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all other
Embodiment, broadly falls into the scope of protection of the invention.
Methods based on DAC-circuit output sound system sound intermediate frequency data in the present invention, its method includes: based on each
DAC port obtains voltage difference on the single-tone type amplifier being connected on each DAC within a certain period of time；Based on voltage difference warp
Crossing Digital Signal Processing opening relationships chain, described relation chain is: each single-tone type amplifier and the pass of corresponding voltage difference
Tethers；Track selecting device is each single-tone type amplifier labelling playing sequence based on described relation chain；Timing control unit based on
Described relation chain is that each single-tone type amplifier distributes reproduction time；After central processing unit completes the process of audio-source, press
Data are exported to each single-tone type amplifier according to playing sequence and reproduction time.
Specifically, the methods based on DAC-circuit output sound system sound intermediate frequency data during Fig. 1 shows the embodiment of the present invention
Flow chart, makes for three single-tone type amplifiers in the implementation process of concrete process, comprises the steps:
S101, obtain the single-tone type amplifier being connected on each DAC based on each DAC port within a certain period of time and power on
Pressure difference；
The DAC module i.e. connected for three single-tone type amplifiers, its DAC port can with probe to but figure amplifier
The voltage of different time, according to the voltage that time point value is different, when such as starting point is 0, different DAC ports obtains first
The magnitude of voltage V11 of single-tone type amplifier, the magnitude of voltage V21 of the second single-tone type amplifier, the magnitude of voltage of the 3rd single-tone type amplifier
V31；In the moment a certain through 1 to 10 minutes, different DAC ports obtains the magnitude of voltage V12 of the first single-tone type amplifier, the
The magnitude of voltage V22 of two single-tone type amplifiers, the magnitude of voltage V32 of the 3rd single-tone type amplifier；By this twice value, it can obtain
Voltage difference | V12-V11 | on the first single-tone type amplifier, the voltage difference on the second single-tone type amplifier | V22-V21
|, voltage difference | V32-V31 | on the 3rd single-tone type amplifier etc..
S102, based on voltage difference through Digital Signal Processing opening relationships chain；
Each voltage difference being converted to digital signal, please realize signal colouration transmission, and set up its relation chain, i.e. first is single
Figure amplifier ID mark and corresponding voltage difference T1, the second single-tone type amplifier ID mark and corresponding voltage difference
T2 and corresponding voltage difference T2, the second single-tone type amplifier ID mark and corresponding voltage difference T3 etc..
Described voltage difference is filtered processing by S103, digital signal processor；
S104, track selecting device are each single-tone type amplifier labelling playing sequence based on relation chain；
Being each single-tone type amplifier labelling playing sequence based on voltage difference size, such as T1 value is that 0.04v, T2 value is
0.06v, T3 value is 0.05v, if being each single-tone type amplifier labelling playing sequence according to voltage difference order from big to small,
Then labelling playing sequence is: the second single-tone type amplifier corresponding to T2 is first play, the 3rd single-tone type amplifier corresponding to T3
Then playing, the first single-tone type amplifier corresponding to T1 is finally play；If being every according to voltage difference order from small to large
One single-tone type amplifier labelling playing sequence, then the first single-tone type amplifier corresponding to T1 is first play, the 3rd corresponding to T3
Single-tone type amplifier is then play, and the second single-tone type amplifier corresponding to last T2 is play.
S105, timing control unit are that each single-tone type amplifier distributes reproduction time based on described relation chain；
This reproduction time can realize a threshold value and control, the such as first single-tone type amplifier broadcasting 10 minutes, and second
Single-tone type amplifier 10 minutes, the 3rd single-tone type amplifier broadcasting 10 minutes, a single-tone type amplifier here, the second single-tone type
Amplifier and the 3rd single-tone type amplifier reproduction time can be identical, it is also possible to be different.
S106, after central processing unit completes the process of audio-source, according to playing sequence and reproduction time to each list
Figure amplifier output data.
Concrete, what Fig. 2 showed in the embodiment of the present invention based on DAC-circuit output sound system sound intermediate frequency data is
System structural representation, including:
Multiple DAC module, for obtaining, based on each DAC port, the single-tone being connected on each DAC within a certain period of time
Voltage difference on type amplifier, the embodiment of the present invention shows three DAC；
Digital signal processor, for based on voltage difference through Digital Signal Processing opening relationships chain, this relation chain being:
Each single-tone type amplifier and the relation chain of corresponding voltage difference；
Track selecting device, being used for based on this relation chain is each single-tone type amplifier labelling playing sequence；
Timing control unit, being used for based on this relation chain is that each single-tone type amplifier distributes reproduction time；
Processor, after being used for the process of audio-source, according to playing sequence and reproduction time to each single-tone
Type amplifier output data；
The single-tone type amplifier being connected to DAC each in multiple DAC module, is used for exporting voice data.
In specific implementation process, this digital signal processor is additionally operable to be filtered described voltage difference processing.
In specific implementation process, each DAC port in the plurality of DAC module obtains the single-tone being connected on each DAC
First voltage of type amplifier；When the time reaches, described each DAC port obtains the single-tone type being connected on each DAC and puts
Second voltage of big device；A voltage difference is calculated based on described first voltage and the second voltameter.
In specific implementation process, this track selecting device is that each single-tone type amplifier labelling is play based on voltage difference size
Sequentially.
In specific implementation process, this track selecting device is that each single-tone type amplifies according to voltage difference order from big to small
Device labelling playing sequence；Or it is each single-tone type amplifier labelling playing sequence according to voltage difference order from small to large.
To sum up, the embodiment of the present invention is for the different voltage differences on different single-tone type amplifiers, it is achieved that audio frequency is broadcast
Mode playback, enhances the different order play mode of this multiple single-tone type amplifier, can be suitable for answering of different scene mode
With, enhance sound system output audio frequency effect.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completing instructing relevant hardware by program, this program can be stored in a computer-readable recording medium, storage
Medium may include that read only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
Thered is provided the embodiment of the present invention above exports the methods of sound system sound intermediate frequency data based on DAC-circuit and is
System is described in detail, and principle and the embodiment of the present invention are set forth by specific case used herein, above
The explanation of embodiment is only intended to help to understand method and the core concept thereof of the present invention；General skill simultaneously for this area
Art personnel, according to the thought of the present invention, the most all will change, in sum, and this
Description should not be construed as limitation of the present invention.
Claims (10)
1. a method based on DAC-circuit output sound system sound intermediate frequency data, it is characterised in that comprise the steps:
Voltage difference on the single-tone type amplifier being connected on each DAC is obtained within a certain period of time based on each DAC port；
Based on voltage difference through Digital Signal Processing opening relationships chain, described relation chain it is: each single-tone type amplifier and institute
The relation chain of corresponding voltage difference；
Track selecting device is each single-tone type amplifier labelling playing sequence based on described relation chain；
Timing control unit is that each single-tone type amplifier distributes reproduction time based on described relation chain；
After central processing unit completes the process of audio-source, according to playing sequence and reproduction time to each single-tone type amplifier
Output data.
2. the methods exporting sound system sound intermediate frequency data based on DAC-circuit as claimed in claim 1, it is characterised in that institute
Method of stating also includes:
Described voltage difference is filtered processing by digital signal processor.
3. the methods exporting sound system sound intermediate frequency data based on DAC-circuit as claimed in claim 1, it is characterised in that institute
State and obtain voltage difference on the single-tone type amplifier being connected on each DAC based on each DAC port within a certain period of time and include:
Described each DAC port obtains the first voltage of the single-tone type amplifier being connected on each DAC；
When the time reaches, described each DAC port obtains the second voltage of the single-tone type amplifier being connected on each DAC；
A voltage difference is calculated based on described first voltage and the second voltameter.
4. the methods based on DAC-circuit output sound system sound intermediate frequency data as described in any one of claims 1 to 3, it is special
Levying and be, described track selecting device is that each single-tone type amplifier labelling playing sequence includes based on described relation chain:
It is each single-tone type amplifier labelling playing sequence based on voltage difference size.
5. the methods exporting sound system sound intermediate frequency data based on DAC-circuit as claimed in claim 4, it is characterised in that institute
Stating based on voltage difference size is that each single-tone type amplifier labelling playing sequence includes:
It is each single-tone type amplifier labelling playing sequence according to voltage difference order from big to small；Or
It is each single-tone type amplifier labelling playing sequence according to voltage difference order from small to large.
6. a system based on DAC-circuit output sound system sound intermediate frequency data, it is characterised in that including:
Multiple DAC module, put for obtaining, based on each DAC port, the single-tone type being connected on each DAC within a certain period of time
Voltage difference on big device；
Digital signal processor, for based on voltage difference through Digital Signal Processing opening relationships chain, described relation chain being: every
One single-tone type amplifier and the relation chain of corresponding voltage difference；
Track selecting device, being used for based on described relation chain is each single-tone type amplifier labelling playing sequence；
Timing control unit, being used for based on described relation chain is that each single-tone type amplifier distributes reproduction time；
Processor, after being used for the process of audio-source, puts to each single-tone type according to playing sequence and reproduction time
Big device output data；
The single-tone type amplifier being connected to DAC each in multiple DAC module, is used for exporting voice data.
7. export the systems of sound system sound intermediate frequency data as claimed in claim 6 based on DAC-circuit, it is characterised in that institute
State digital signal processor to be additionally operable to be filtered described voltage difference processing.
8. export the systems of sound system sound intermediate frequency data as claimed in claim 6 based on DAC-circuit, it is characterised in that institute
State each DAC port in multiple DAC module and obtain the first voltage of the single-tone type amplifier being connected on each DAC；Time
Between when reaching, described each DAC port obtains the second voltage of the single-tone type amplifier being connected on each DAC；Based on described
First voltage and the second voltameter calculate a voltage difference.
9. the systems based on DAC-circuit output sound system sound intermediate frequency data as described in any one of claim 6 to 8, it is special
Levying and be, described track selecting device is each single-tone type amplifier labelling playing sequence based on voltage difference size.
10. export the systems of sound system sound intermediate frequency data as claimed in claim 9 based on DAC-circuit, it is characterised in that institute
Stating track selecting device according to voltage difference order from big to small is each single-tone type amplifier labelling playing sequence；Or according to
Voltage difference order from small to large is each single-tone type amplifier labelling playing sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610694072.XA CN106303826B (en) | 2016-08-19 | 2016-08-19 | Method and system based on DAC circuit output sound system sound intermediate frequency data |
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|---|---|---|---|
| CN201610694072.XA CN106303826B (en) | 2016-08-19 | 2016-08-19 | Method and system based on DAC circuit output sound system sound intermediate frequency data |
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| CN106303826A true CN106303826A (en) | 2017-01-04 |
| CN106303826B CN106303826B (en) | 2019-04-09 |
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Cited By (1)
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| CN112687248A (en) * | 2020-12-22 | 2021-04-20 | 广州番禺巨大汽车音响设备有限公司 | Audio playing control method and device based on intelligent DJ sound system |
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